曝气量对好氧颗粒污泥处理效果的影响研究
摘要
为探究在不同曝气条件下,好氧颗粒污泥自身结构以及脱氮除磷性能,利用SBR反应器培养好氧颗粒污泥,通过静态试验分别控制反应器内的曝气量为2、2.3、2.5、2.8、3.0和3.5L/min的条件下并对反应器出水进行检测,分析在不同曝气量条件下对好氧颗粒污泥污染物去除效果的影响。通过试验发现,当曝气量在2.5～2.8L/min范围内时,好氧颗粒污泥对污染物的去除效果比较理想。曝气量主要影响颗粒污泥对氮和磷的去除效果,而对有机物的去除效果影响不大,合理地控制曝气量有助于污染物的去除。
引文
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[11]刘旭亮,彭永臻,彭赵旭,等.高曝气量引发的活性污泥黏性膨胀研究[J].中国给水排水,2011,27(17):1-5.
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[2]苏海佳,王陆玺,邓爽,等.好氧颗粒污泥技术及研究进展[J].化工进展,2016,35(6):1914-1922.
[3]Liu Y,Wang Z,Tay J H.A unified theory for upscaling aerobic granular sludge sequencing batch reactors[J].Biotechnology Advances,2005,23(5):335-344.
[4]宋志伟,梁洋,任南琪,等.有机负荷对SBAR中好氧颗粒污泥特性影响的研究[J].环境科学与技术,2008,31(10):128-131.
[5]陈寰.溶解氧对好氧颗粒污泥影响的研究进展[J].四川环境,2010,29(2):109-112.
[6]Liu Y Q,Tay J H,Moy B Y P,et al.Characteristics of aerobic granular sludge in a sequencing batch reactor with variable aeration[J].Appl Microbiol Biotechnol,2006,71:761-766
[7]Wei D,Qiao Z M,Zhang Y F,et al.Effect of COD/N ratio on cultivation of aerobic granular sludge in a pilot-scale sequencing batch reactor[J].Appl Microbiol Biotechnol,2013,97:1745-1753.
[8]杨欣,李志华,谭周权,等.温度对好氧颗粒污泥形成和稳定的影响[J].中国给水排水,2014,30(1):10-17.
[9]LIU Y,TAY J H.The essential role of hydrodynamic shear force in the formation of biofilm and granular sludge[J].Water Research,2002,36(7):1653-1665.
[10]赵珏,程媛媛,宣鑫鹏,等.曝气深度对好氧颗粒污泥稳定性的影响[J].化工进展,2018,37(4):1623-1630.
[11]刘旭亮,彭永臻,彭赵旭,等.高曝气量引发的活性污泥黏性膨胀研究[J].中国给水排水,2011,27(17):1-5.
[12]Gao D W,LiuL,Liang H.Influence of aeration intensity onmature aerobic granules in sequencing batch reactor[J].Applied Microbiology and Biotechnology,2013,97(09):4213-4219.